Engineering, 20.12.2019 05:31 trentvw1174
Adistillation column with 100 kmol/h feed of 41 mole % a (and the rest b) produces a distillate product with xd = 0.92 and a bottom stream with xbot = 0.05 of the more volatile species a. cmo is valid and the equilibrium data is give by y = ax/[1+(a-1)x], where a = 2.86.
a) if the feed is saturated liquid, determine the minimum reflux ratio.
b) if the feed is saturated vapor, determine the minimum reflux ratio. for question c and d, the reflux ratio is 1.5 and the feed is a saturated mixture with q = 0.45.
c) determine the liquid flow rate lbar in the stripping section of the column.
d) determine the mole fraction of a in the vapor stream entering the top equilibrium stage.
Answers: 2
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
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Engineering, 04.07.2019 18:10
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
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Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:10
Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables
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Adistillation column with 100 kmol/h feed of 41 mole % a (and the rest b) produces a distillate prod...
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